Distance: 2300 ly

3 - 3 minute exposures in each LRGB channel. Temp -10C.

Telescope: Celestron EdgeHD1100
Reducer: None
Camera: QSI-583wsg
Filters: Astrodon Tru-Balance Generation 2 E-Series - LRGB 1.25" Mounted Filter Set
Mount: Losmandy G11/Gemini with the Ovision worm upgrades
Autoguider: Starlight Xpress LodeStar attached to the camera's integrated guide port.
Processing: ImagesPlus 4.25 and Nebulosity2.
Calibrated using a bad pixel map of 15 dark frames; 13 bias frames; 5 flat frames.
Final image cropped to 3200x2400 then resized to half (1600x1200) then cropped to 1280x960.

20110608_M57_LRGB_ACC-IPadj1-crv-2.jpg